Reclosing carton



June 14, 1949. R. GUYER RECLOSING CARTON Filed Jan. 5, 1945 2Sheets-Sheet 1 QM m/Qm June 14, 1949. GUYER 2,473,055

RECLOSING CARTON Filed Jan. 5, 1945 2 Sheets-Sheet 2 Patented June 14,1949 UNITED STATES PATENT OFFICE BECLOSING CARTON Reynolds Guyer, St.Paul, Minn, assignor to Waldorf Paper Products Company, St. Paul, Minn,a corporation of Minnesota Application January 5, 1945, Serial No.571,442

1 Claim. (01. 229 37) My invention relates to an improvement inreclosing carton wherein it is desired to provide a carton which may bereadily opened and closed.

Many commodities, such as smoking tobacco and the like, which previouslywere packed in metal containers are now packed in paper cartons. Thesecartons in order to be satisfactory must possess certain qualities. Inthe first place the cartons must be relatively strong to withstand thestrain of being carried about in a pocket for a considerable length oftime. In the second place the cartons must be readily opened to exposethe contents. Finally such cartons should be closed as effectively aspossible when not in use so as to prevent the contents from drying out.

It is the object of the present invention to produce a. carton which ispossessed of the above listed necessary attributes for a carton of thistype. A portion of the walls of the carton are of I double thickness andtherefore the carton is more rigid than would otherwise be possible. Theentire top of the carton may be swung open, thus providing easy accessto the interior of the carton. Furthermore when swung into closedposition the carton will remain closed and will not open accidentally.As a result an effective closure is provided.

A feature of the present invention lies in providing a carton which hasa portion of the walls thereof formed of double thickness, but which isextremely economical to construct. Other cartons have been produced fora similar purpose Figure 6 is a perspective carton.

Figure 7 is a perspective view of the upper portion of the carton shownin Figure 6 in open position. I

The carton A comprises a front panel l0 having a pair of side panels I Iand I2 foldably connected to opposite sidesthereof along parallel foldlines l3 and I4 respectively. An outside glue flap I5 is secured to theside flap l2 along .the fold line it. A rear panel I! is foldablyconnected to the side panel ll along the fold line 19. An inner sidepanel 20 is connected to the rear panel I! along the fold line 2|. Aninner front panel 22 is connected to the inner side panel 20 along thefold line 23. An inner side panel 24 is connected to the inner frontpanel 22 along the fold line 25. All of the fold lines previouslymentioned are substantially parallel.

Top closure flaps 26, 21, 29 and 30 are connected to the panels H, II,II) and I2, respectively, along a common fold line 3|. Bottom closureflaps 32, 33, 34, and are connected to the lower edges of the panels II,II, III, and I2, respectively, along view of the completed 26 the commonfold line 36. The top and bottom which include double wall structures.These I previously constructed cartons, however, have usually comprisedat least two additional panels to accomplish approximately the sameresult. The present carton is therefore an improvement upon previoustypes of cartons which involve the use of additional paper stock.

These and other objects and novel features of my invention will be moreclearly and fully set forth in the following specification and claim.

In the drawings forming a part of my specification:

Figure 1 is a diagrammatic view of a carton blank showing theconstruction thereof.

Figure 2 is a perspective view of the blank shown in Figure 1 inpartially folded position.

Figure 3 is the blank shown in Figures 1 and 2 in a later step of thefolding operation.

Figure 4 is a vertical section through the carton showing thearrangement of the walls thereof.

Figure 5 is a transverse section through the folded carton.

closure panels. are designed to fold in the usual manner to provide topand bottom closures for the carton. Parallel perforated lines 31 areprovided in the flaps 26 and 32 so as to increase the tendency foradhesive to adhere the remaining flaps thereto. In the closing of thecarton the flaps 21 and 30 are usually folded into coplanarrelationship, the flap 26 folded to overlie the same, and the flap 29folded over the flap 26. Similarly in sealing the other end of thecarton the flaps 33 and 35 are usually folded into coplanar relation,the flap 32 folded to underlie the same, and the flap 34 is folded tounderlie the flap 32.

In the assembly of the carton A adhesive is applied to a portion of thepanel 24, the remainder of the panel being printed to prevent theadhesive from adhering thereto. The carton is then folded to bring theadhesive coated surface of the panel 24 into engagement with the innersurface of the side panel II. This step of the folding operation isshown in Figure 2 of the drawings and is usually completed when theblank is in a flat state. For the purpose of illustration, however, thecarton is shown in tubular form rather than fiat form.

After the lower part of the panel 24 has been secured to a part of theside panel II, the folding operation is continued. Adhesive applied tothe inner surface of the panel or flap l5 contacts one side of the outersurface of the rear panel I! to adhere the flap l5 to this rear panel.Thus auaocc both of the ends of the carton blank are adhered to thecarton panels which they underlie or overlie. Figure 3 of the drawingsshows the flap IS in the process of bein folded to overlie the rearpanel of the carton while Figure shows the manner in which the flap l5is adhered to the panel H.

A out line 31 extends across the front panel H] from the fold line I3 tothe fold line H extending parallel to the fold lines 3| and 36. Cutlines 39 and 40 form a continuation of the out line 31 and extendangularly across the sides II and I2 respectively. The out line 39extends from the fold line l3 to the fold line l9 and inclines upwardlytoward the top of the carton from the out line 31. The cut 40 extendsfrom the fold line i4 to the fold line l6 and extends upwardly towardthe top of the carton from the out line 31. The back panel l'l'isprovided with a transverse crease line 4| extending across the same toconnect the higher ends of the inclined cut lines 39 and 40. The panelI5 is provided with a fold line 42 which overlies a part of the creaseline 4| and the panel may be out along the fold line 4| beneath thepanel IS. The carton blank is also out along the fold lin 2| from thetop of the carton to the crease line 4| as indicated at 43 so as toseparate the panels i1 and 20 above the crease line 4 I.

For the sake of appearance the upper corners of the panels 20 and 24 maybe rounded as indicated at 44. This rounding of the corners 44 also isof benefit in preventing the corner from becoming bent or injured.

It will be noted that when the carton is sealed as illustrated in Figure6 of the drawings, a tight closure is provided, the carton being in theshape of a rectangular glued end carton with an outside glue lap. Whenit is desired to open the carton, the cap which comprises the upperextremities of the panels III, II, i2 and I1, together with the closureflaps 26, 21, 29 and 30 attached thereto, is grasped and folded alongthe superimposed fold lines 4| and 42. This opens up the top of thecarton as indicated in Figure 7 of the drawings in such a manner thatthe entire top of the carton may be open if desired. This type ofconstruction is desirable for use in the packaging of products such astobacco, wherein the product is sealed within a bag inside of thecarton, making it necessary to open up the bag before removing any ofthe contents. The liner which is formed by the panels 20, 22, and 24lies within the walls ||l, II and l2 having the out lines 31, 39, and 40therein so that when the carton is opened the liner projects above thetop of th remaining portion of the outer lamination of the carton. Thisstructure acts to lock the carton either closed or opened as the foldline 4| is spaced from the top edge of the carton. The provision of thefold line 4| at a point spaced from the top of the carton acts to makenecessary the flexing oi the carton top in closing or opening the same,thus preventing accidental opening of the closed carton.

In accordance with the patent statutes, I have described the principlesof construction and operation of my reclosing carton, and while I haveendeavored to set forth the best embodiment thereof. I desire to have itunderstood that obvious changes may be made within the scope of thefollowing claim without departing from the spirit of my invention.

I claim:

A carton blank comprising a series of four side wall panels foldablyconnected together, a glue flap connected to one panel at one end of theseries, a series of three liner panels foldably connected to a secondside wall panel of the first named series, a fold line in said glue flapand a corresponding fold line in said second side wall panel, a out linesubstantially the width of said glue flap forming that portion of thesaid corresponding fold line to be overlapped by said glue flap, a outline in said on side wall panel and in the remaining side wall panels ofsaid first series, said out lines being in continuation of one anotherand connecting the fold line in said glue flap with the fold line ofsaid second side wall panel, closing flaps hingedly connected to the topand bottom edges of said side wall panels of said first named series,all of the liner panels with th exception of the one connected to saidsecond side wall panel being less than one-half the height of said sidewall panels of said first named series.

REYNOLDS GUYER.

REFERENCES CITED The following referemces are of record in the,

file of this patent:

UNITED STATES PATENTS Number Name Date 2,320,289 Marx May 25, 19432,361,597 Buttery Oct. 31, 1944 2,361,659 Smith Oct. 31, 1944 2,367,476Tyrseck Jan. 16, 1945 2,396,150 Bonville Mar. 5, 1946

